Pickling tank construction



May 12, 1931. E. B. HUDSON PIGKLING TANK CONSTRUCTION Filed Sept. 18,1928 I M w N S t.. 0 I i 3 Patented May 12, 1931 UNITED stares PATENT olCE EDWIN B. HUDSON, OF BUTLER, PENNSYLVANIA, ASSIGNOR TO THE AMERICANROLL- ING MILL COMPANY, OF MIDDLETOVVN, OHIO, A CORPORATION OF OHIOPICKLING- TANK CONSTRUCTION Application filed September 18, 1928, SerialNo.1306, 638.

It is an object of my invention to provide a type of tank which may beconstructed in place at a minimum of expense.

It is a further object of my invention to facilitate the use of cheapermaterials in pickling tanks, and particularly re-inforced concrete. I 7

Since some leakage and ill repair after protracted periods ofuse isunavoidable, still further objects of 'my invention. are provision ofmeans for detecting. leaks and locating them within a reasonably smallarea, the

I conducting away of the leaking acid, and the protection of theconcrete therefrom.

Still a further object of my invention is the provision of a novel tankconstruction employing hollow tiles, whereby the above objects, andothers which will be apparent to one skilled in; the art upon readingthese specifications, will be subserved.

I attain theseobjects by that certain construction and arrangement ofparts of which I shall. now describe a preferred embodiment, referencebeing made to the drawings which form a part of these specifications.v

In these drawings v I Figure 1 is a view, partly pickling tank of myconstruction.-

. Figure 2 is a tile prepared for. use onthe floor of 1ny,tank.,,

I prepare a re-inforced concrete construcr as tion resting upon feet 1andiZ. Extending therebetween is a sub-floor 3 with a 'sl anting uppersurface. A" heavy upright-wall 1 .rests upon the foot '1 andfurnishessupportj forpne side of the tankfj The tank proper piece.

a fl or ofconcrete fand1side-walls hand 1. The other side of the tankproper is supported upon the sub-floor by interspaced piers 8. All ofthis construction is prefer- ..a re-mi'orcec con e e nave s o n blyofcrt I he rod re nforcements at 9) 'and cast in one t s one oftheadvantages of my construction that it permits the use of concrete inthis fashlon; but other naterials may be used and will fall within thescope of my invention. p

The concrete fioor'5 of my tank, is of standard reinforced concrete andtile construction excepting thatthe tiles 10 are set in on end with thecells in a'vertical position. These tiles are preferably spaced at 12centers along the longtiudinal axis of the tank.' The concrete betweenthe tiles forms girders 11, properly reinforced with steel rods to carrytension loads. Theseconcrete girders are poured to a height of 1 inchbelow the top ofthe vertical tiles'l'eaving a space overlying thegirders. This space I fill level with a layer of asphalt mastic cement,which I have indicated at 12. Thus the floor of my tank comprises aconcrete platform 5 pierced transversely by lines of acid proof hollowtile, the cells of which form conduits leading throughthe floor, andopening above the subfioor 3. And the girders demarked by. these tilesare top-sealed with a coating of asphalt; 'cement. The v girders arethus protected from acid on top by the mastic and on the sides by thetiles. The tiles, as will hereinafter'be more fully explained, act asweep holes for any acid which may leak through the first lining. V

The concrete side walls, 6, are an integral part of the floor in mypreferred construcin sectionand V partly in perspective, of a portion ofan acid p p hydrostatic head in the tank. Both walls tion, and may, bedesigned as a cantilever beam to resist the overturnmg moment of the andfioorofthe tank are broken at intervals to provide expansion jointswhich are necessary inrvery long tanks. I haveshown one of these ointsinthe floor, and comprising a suitable. I find it satisfactory to providean I I tions; but its action is not, perfect.

expansion joint every twenty feet, more or less.

I coat the side walls with a layer 16 of asphalt mastic, making thiscontinuous with the mastic layer surmounting the floor girders. My tankis now ready for the application of the inner layers.

The floor of my tank I next lay with a course of hollow tiles 10a withthe cell spaces following-the longitudinal axis of the tank. These tileswill be laid so that their meeting edges lie over the cell openings ofthe vertical tiles in the floor. Twelve inch tiles will serve for thefloor providing the transverse courses of vertical tiles have been laidon twelve-inch centers, The tiles 10a will have notches 10b chipped fromtheir lower edges to permit any liquid which comes into the cells todrain therefrom into the cell openings of the vertical tiles. Thecorners of my tank I preferably finish with angle tile 100. The cellpartiti'ons of these tiles are chipped away as at 10d to permit flowbetween and into the cells. There will be no notches in the bases ofthese tiles if the transverse rows of vertical tiles stop. short of. thesides of the tank. Surn ounting the angle tiles and covering the wall- 6is a course of tiles 10c laid with the cells vertical. WVhen the entiretank'is thus lined with tiles,I coat it within with another asphaltmastic seal 17, and it is then ready to receive the acid-proof finallining.

The layer of acid proof hollow tiles, 10a,

etc. serves a number of purposes. It acts as insulation for the tank,which is of some mportance in the use of hot pickle liquors. It makespossible the use of two mastic seals, which is a matter of greatimportance The construction of a successful pickle tank involves thecoordination of a number of factors. The inner acid-proof lining withits mastic seal, however well protected by expansion joints and thelike, isv subject to cracking and leakage. A mastic seal is intended toprotect the nQn-acid-proof tank proper from corrosion under these condi-In my .-.onstruction, I provide the tank proper with a second masticseal s parat d from the first by an open-work structure so that initselfit is less. subject to-the immediate influences tending to crack theacid-proof-lining. Again the tile-cells'provide, weep holes-or a agpening hroue which pick iqu a s h o g e ac d-Proof linin a d fir ma tic.1 may be Conduct d, away bef e. t an a t. p n the second masti 1- h s wd' ast c ea i ther fiere su ie' t o yd static. h ad. Acid seepin t oug areek a side Wal will dr p wn a t l hrough the erticalehaanels o t ies. 6211161 thr es-h the matches of; th

tiles .9 and, 19%; the ce ls "est and onto the sub-floor 3. The locationof a ows o t throu h.

. hrou h. sald tiles 1. a: dee

leak can be determined within a small space by observing the drip. Thissubfloor, I prefer to provide with an acid-proof lining 17' similar tothat next to be described for the tank, and to line the interior portionof the upright 4L therewith also, as at 17a. The piers 8 are made of, orlined with'acid-proof material. The slantwise disposition of the top ofthe sub-floor causes seepage to drain into a gutter 18 by means of whichit is conducted away. 7 I

A number of acid proof substances or constructions will serve for theacid proof lining 17b of the interior of the tank, and the linings 17and 17a of the sub-floor and wall. The one I prefer to use comprises acourse of acid-proof brick laid in acid-proof cement. A satisfactorycement is a heat'plastic comprising sulphur and sand; but others aresuitable. At intervals along the interior lining I provide for expansionjoints which preferably coincide'wit-h the expansion joints of the tankproper. A convenient form is a wooden strip. 19 embedded as shown in aspace left in the lining. These joint-s not only allow for expansion andcontraction,

but when constructed as shown, further minimize cracking by causing thecomposite tank to act as a unitary construction.

The tank Walls may be surmounted, as shown, by granite slabs 20'.

Modifications in my construction for different types of tanks willsuggest themselves to one skilled in the art, as will substitution ofmaterials.

Such changes, however, are included within the scope of my invention ofwhich I have described a preferred embodiment; and what I claim as newand desire to secure by Letters Patent, is:

1 In a tank construction, an open cellular structure having a masticseal on both sides thereof whereby a hydrostatic headwithin the tank isprevented from acting upon the outermost seal layer.

2. In a tank construction an outer wall with an inner mastic seal, andaninner wall with an outer mastic seal, said seals separated by an open.cellular construction.

3. In a tank construction an outer wall with an'inner'mastic seal, andan inner wall with an outer mastic seal, said seals separated by an opencellular construction, comprising hollow tiles. i

4. In a tank construction an outer wall with an inner mastic seal, andan inner wall with an outer mastic seal, said seals separated by anopen. cellu a c n truc i n, comp i ho low 6 9 i posed as. to p o ide anels o lqnd c away eepage coming inner wall,

5-. 1 a eenst iuq eneueu erw l an. inner seal, a d an inner Wall. iouter mastic se t and. sea s. separated bv an open cellularconstruction, comprising hollow tiles, said tiles forming channels toconduct away seepage coming through said inner wall, and openingsthrough said outer wall at the bottom communicating with said channels.

6. In a pickling tank an outer wall with an inner mastic seal and aninner wall with an outer mastic seal, channeled members between saidseals adapted to drain seepage coming through said inner wall, and openings in the floor which is adjacent said outer wall to emit saidseepage.

7. In a pickling tank, an outer wall with an. inner mastic seal and aninner wall with an outer mastic seal, channeled members 3etween saidseals adapted to drainseepage coming through said inner wall, andopenings in the floor which is adjacent said outer wall to emit saidseepage, a sub-floor beneath said floor to catch said seepage,-and agutter to conduct it away.

8. In a pickling tank an. outer wallwith an inner mastic seal, and aninner wall with an outer mastic seal, hollow tiles separating saidseals, the vertical tiles laid with their cells vertically disposed, thehorizontal tiles notched to permit liquid flow transversely of thecells, and openings through said outer wall forming drains.

9. In a pickling tank an outer wall with an inner mastic seal, and aninner wall with an outer mastic seal, hollow tiles separating saidseals, the vertical tiles laid with their cells vertically disposed, thehorizontal tiles notched to permit liquid flow transversely of thecells, and openings through said outer wall forming drains, saidopenings comprising vertical tiles in the floor which is adjacent saidouter wall.

10. In a pickling tank a foundation com prising a sub-floor and supportsfor a tank,

and a tank proper comprising outer walls and floor, said floorperforated by vertical hollow tiles forming communicating channelstherethrough, a mastic seal over all inwardly exposed portions of saidouter wall including the floor which is adjacent thereto, an inner walland an outer mastic seal thereon, and a course of tiling interposedbetween said seals, said tiling providing channels for liquid flow,intercommunicating and communicating with said channels through saidfloor.

11. In a pickling tank, a foundation of concrete comprising a sub-floorand an acid proof lining therefor and supports for a tank proper, and atank proper resting upon said supports and comprising outer walls andfloor of concrete, said floor pierced by transverse rows of hollow tilesforming channels therethrough, a mastic seal over all inwardly exposedportions of said outer wall including the floor which is adjacentthereto, a course of tiling covering said seal, said tiling providingchannels for liquid flow, intercommunicating and communicating with saidchannels through said floor, an inner mastic seal upon said course oftiling, and an inner acid-proof lining on said mastic seal.

12. In a pickling tank, a foundation of concrete comprising a sub-floorand an acidproof lining therefor and supports for a tank proper, and atank proper resting upon said supports and comprising outer walls andfloor of concrete, said floor pierced by transverse rows of hollow tilpsforming channels therethrough, a mastic mal over all inwardly exposedportions of said outer wall includ ing the floor which is adjacentthereto, a course oftiling covering said seal, said tiling providingchannels for liquid flow, intercommunicating and communicating with saidchannels through said floor, an inner mastic seal upon said course oftiling, and an inner acid-proof lining on said mastic seal, saidsub-floor arranged to drain to a gutter, and a gutterto conduct awayliquid flow. EDWIN B. HUDSON.

